DE133457C - METHOD OF ELECTROLYTIC PRESENTATION OF HYDROXYLAMINE - Google Patents

METHOD OF ELECTROLYTIC PRESENTATION OF HYDROXYLAMINE

Info

Publication number
DE133457C
DE133457C DE1901133457D DE133457DA DE133457C DE 133457 C DE133457 C DE 133457C DE 1901133457 D DE1901133457 D DE 1901133457D DE 133457D A DE133457D A DE 133457DA DE 133457 C DE133457 C DE 133457C
Authority
DE
Germany
Prior art keywords
nitric acid
cathode
reduction
hydroxylamine
sulfuric acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE1901133457D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CF Boehringer und Soehne GmbH
Original Assignee
CF Boehringer und Soehne GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CF Boehringer und Soehne GmbH filed Critical CF Boehringer und Soehne GmbH
Application granted granted Critical
Publication of DE133457C publication Critical patent/DE133457C/en
Priority to AT11874D priority Critical patent/AT11874B/de
Priority to AT14887D priority patent/AT14887B/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00Electrolytic production of inorganic compounds or non-metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Description

• Y Patent-Anspruch: . ■ Y• Y patent claim:. ■ Y

.■'. Verfahren zur Darstellung von Hydroxylamin durch elektrolyüsche Reduction von Salpetersäure, dadurch gekennzeichnet, dafs die Elektro-.; lyse ; in Gegenwart von Schwefelsäure bei niederer Temperatur vorgenommen. und die Salpetersäure allmählich . nach .Mafsgabe ihres Verbrauches hinzugefügt, wird. Y. / Y. ■ '. Process for the preparation of hydroxylamine by electrolytic reduction of nitric acid, characterized in that the electro-. lysis ; made in the presence of sulfuric acid at low temperature. and the nitric acid gradually. after .Mafsgabe their consumption added, is. Y. / Y

Claims (1)

KAISERLICHESIMPERIAL PATENTAMT.PATENT OFFICE. JVIl 33457 KLASSE 12/ΛJVIl 33457 CLASS 12 / Λ Es ist bisher noch nicht-gelungen,-- bei der clckfrolylischcn Reduction der freien Salpetersäure als Rediictionsproducl das Hydroxylamin zu erhalten.It has not yet succeeded - with the The hydrolysis reduction of free nitric acid as a reduction product is hydroxylamine to obtain. Wir haben nun gefunden, dafs die Elektrolyse einer Lösung, die gleichzeitig Schwefelsaure und Salpetersäure enthält, durch Wahl geeigneter Versuchsbedingungen so geleitet werden kann, dafs in guter Ausbeute Hydroxylamin entsteht. Unser Verfahren ermöglicht also eine technisch durchführbare directe Darstellung der genannten Base aus Salpetersäure. ■Da bei Gegenwart überschüssiger Schwefelsäure das Hydroxylamin gegen Salpetersäure nur bei niederer Temperatur beständig ist, so ist es nothwendig, die Reduction unter guter Kühlung auszuführen, ferner mufs man für eine rasche und gleichmäfsige Durchmischung des Elektrolyten Sorge tragen und einen Ueberschufs von Salpetersäure möglichst vermeiden. Die letztere Bedingung erfüllt man durch ein langsames Zugeben der Salpetersäure, nach Mafsgabe. ihres Verbrauches, so dafs sie stets nur in einer für die Ausnutzung des Stromes eben genügenden Concentration vorhanden ist.We have now found that the electrolysis of a solution which simultaneously contains sulfuric acid and contains nitric acid, can be conducted by choosing suitable experimental conditions that hydroxylamine is formed in good yield. Our method thus enables a technically feasible direct representation said base from nitric acid. ■ Since in the presence of excess sulfuric acid, the hydroxylamine against nitric acid is stable only at a low temperature, it is necessary to keep the reduction under a good one Carry out cooling, furthermore one must for a rapid and even mixing take care of the electrolyte and avoid an excess of nitric acid as far as possible. The latter condition is met by slowly adding the nitric acid Measure. of their consumption, so that they are always only used in one way for the utilization of the electricity just enough concentration is available. Als Kathodenmaterial hat sich besonders geeignet erwiesen Quecksilber bezw. eine amalgamirte Kathode. Doch läfst sich die Reduction auch unter Verwendung von Kathoden aus Blei, Zinn, Silber, Nickel, Wismuth, Kupfer ausführen. Nebenher entstehen je nach dem Material der Kathode noch andere Reductionsproduete der Salpetersäure in untergeordneter . Menge. Y: -■ ■γ ■ ' V '.. ν ■.'., . - : ν -As a cathode material has been found to be particularly suitable mercury. an amalgamated cathode. But the reduction can also be carried out using cathodes made of lead, tin, silver, nickel, bismuth, copper. At the same time, depending on the material of the cathode, other reduction products of nitric acid arise in a subordinate manner. Lot. Y: - ■ ■ γ ■ 'V' .. ν ■. '.,. - : ν - Am besten verfährt man etwa folgender-., niafsen ι·'·--'''-Y v.-. Y ;■■'■'. ■. :.-:.'. , . ■'■ . ■ :, . ■'.'■,.: It is best to proceed as follows-., Niafsen ι · '· --'''- Y v.-. Y ; ■■ '■'. ■. : .- :. '. ,. ■ '■ . ■ : ,. ■ '.' ■,.: Der Kathodenraum 'eines Elcktrolyscurs wird ■mit 6 kg 50 ρ roe. Schwefelsäure beschickt, der durch ein Diaphragma abgetrennte Anodenraum enthält ebenfalls 5oproc. Schwefelsäure. Beide Abtheilungen sind mit gut funetionirenden Kühlvorrichtungen versehen. Die Kathode besteht aus gut amalgamirtem Blei, die Anode, bildet reines Blei. Man sendet Ynun unter starker Kühlung einen Strom von 60■' bis .120 Ampere pro qdm durch das Bad und läfst langsam' mittelst Tropfapparates 2 kg 50 proc. Salpetersäure in einem solchen Tempo . zuflielsen, dafs stets eine eben deutliche Wasserstoffentwicklung an der Kathode bemerkbar ist, wobei die Kathodenflüssigkeit fortwährend kräftig gerührt wird. Die Temperatur darf während des Versuches weder im Katbodennoch im Anodenraum über 200 steigen. Wenn Alles eingetragen ist, wird noch so lange weiter reducirt, bis sich in einer Probe der Kathodehlauge keine Salpetersäure mehr nachweisenThe cathode space 'of an Elcktrolyscurs is ■ with 6 kg 50 ρ roe. Sulfuric acid, the anode compartment separated by a diaphragm also contains 5oproc. Sulfuric acid. Both sections are provided with well-functioning cooling devices. The cathode consists of well amalgamated lead, the anode is pure lead. A current of 60 to 120 amperes per square meter is sent to Ynun through the bath under strong cooling and 2 kg 50 per cent are slowly run by means of a drip device. Nitric acid at such a rate. Influence that a distinct evolution of hydrogen is always noticeable at the cathode, the catholyte being continuously vigorously stirred. The temperature may rise above 20 0 during the experiment neither in Katbodennoch in the anode chamber. When everything has been entered, the reduction continues until no more nitric acid can be detected in a sample of the cathodic liquor läfst.; · : [-■■■ ■■ ■ .' ■■ ·■;■■.■■■■; ··|«·. Y'running .; · : [- ■■■ ■■ ■. ' ■■ · ■; ■■. ■■■■; ·· | «·. Y ' Das entstandene Hydroxylamin wird sodann als Sulfat oder Chlorhydrat nach bekannten Methoden aus der ReactionsflUssigkeit isolirt. .'■■'The resulting hydroxylamine is then known as sulfate or chlorohydrate Methods isolated from the reaction liquid. . '■■'
DE1901133457D 1901-07-25 1901-07-25 METHOD OF ELECTROLYTIC PRESENTATION OF HYDROXYLAMINE Expired DE133457C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT11874D AT11874B (en) 1901-07-25 1902-07-21
AT14887D AT14887B (en) 1901-07-25 1902-12-06 Process for the electrolytic preparation of hydroxylamine.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE133457T 1901-07-26

Publications (1)

Publication Number Publication Date
DE133457C true DE133457C (en) 1902-07-10

Family

ID=61160945

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1901133457D Expired DE133457C (en) 1901-07-25 1901-07-25 METHOD OF ELECTROLYTIC PRESENTATION OF HYDROXYLAMINE
DE1902137697D Expired DE137697C (en) 1901-07-25 1902-02-25 METHOD OF ELECTROLYTIC PRESENTATION OF HYDROXYLAMINE

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE1902137697D Expired DE137697C (en) 1901-07-25 1902-02-25 METHOD OF ELECTROLYTIC PRESENTATION OF HYDROXYLAMINE

Country Status (1)

Country Link
DE (2) DE133457C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE968363C (en) * 1949-08-27 1958-02-06 Du Pont Process for the preparation of salts of hydroxylamine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE968363C (en) * 1949-08-27 1958-02-06 Du Pont Process for the preparation of salts of hydroxylamine

Also Published As

Publication number Publication date
DE137697C (en) 1902-11-26

Similar Documents

Publication Publication Date Title
DE133457C (en) METHOD OF ELECTROLYTIC PRESENTATION OF HYDROXYLAMINE
US1912430A (en) Electrolytic process of producing ductile iron
DE813914C (en) Process for the electrolytic deposition of rhodium
DE753434C (en) Process for the purification of solutions used to generate per compounds
DE1618838C3 (en)
DE323066C (en) Process for cleaning the surface of objects made of iron or steel by electrolytic means
DE121835C (en)
DE69513611T2 (en) Process for the electrical extraction of heavy metals
DE2157560A1 (en) Process for the production of saligenin
US1452813A (en) Method of decomposing mixed metal-salt solutions
DE233895C (en)
DE944038C (en) Method for the electrolytic deposition of shiny nickel deposits from galvanic baths
DE365588C (en) Process for the electrolytic oxidation of acetaldehyde to acetic acid
AT140215B (en) Process and device for the electrolytic separation of copper-silver alloys.
DE131404C (en)
DE252759C (en)
DE488667C (en) Production of hydrogen peroxide
AT101308B (en) Process for the preparation of alkali metal amides.
DE709569C (en) Process for the electrolytic extraction of tin from tinned waste material, in particular tinplate waste
DE411732C (en) Process for the preparation of alkali metal amides
DE117251C (en)
DE229249C (en)
DE168273C (en)
DE2129939B2 (en) METHOD FOR THE ELECTROCHEMICAL PRODUCTION OF URANEHEXAFLUORIDE
AT95679B (en) Process for the electrolytic separation of alloys of silver with other noble and base metals.